Pitching-machine.



No. 831,006. PATENTED SEPT.-1l,1906.

A. KIEFPER & H. REBSAMEN.

PITCHING MACHINE.

APPLICATION FILED APR.23, 1906.

AUGUST KIEFFER AND HENRY REBSAMEN, OF CHICAGO, ILLINOIS.

PlTCHlNG-NIACHINE.

. Speccaton of Letters Patent.

Patented Sept. 1 1, 1906.

Application filed April 23, 1906. Serial No. 313,282.

To a/ZZ whom it may concern:

Be it known that we, AUGUST KIEFFER and HENRY ,REBSAMEM citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvementin Pitching-Machines, of which the following is a specification.

Our invention relates to an improvement in the class of machines used in coating the interior surfaces of beer-barrels, kegs, and the like with pitch, which operation is known in the art as pitching7 A common form of apparatus used in pitching barrels involves a coke-burning stove supported on a carriage to render it readily transportable and equipped with an air-blower, the top of the stove being formed with a head or a laterally-extending neck adapted to have coupled with it a tubular nozzle device to be introduced into the barrel through the metal bushing in its bunghole for the purpose of introducing heat from the stove into the barrel to thoroughly dry its interior preparatory to the pitching and soften the pitch, if any, with which the interior surface of the previously-used receptacle was coated. One form of the nozzle device referred to involves a hood or cap applicable to the stove head or neck and having extending from it one or more name-conducting `tubes each having a closed outer end, near which it is longitudinally slotted for the egress of the flame and which end is adapted to be inserted through the bushing into the receptacle. The heat thus introduced through the nozzle device is so great as to intensely heat the tube, and because of contact of the hot tube with the metal bushing the latter is rendered so hot as to char the wood about the bung-hole with consequent impairment of the receptacle.

The object of our invention is to provide as an improvement on the nozzle device novel means for preventing the heat-tube where it contacts with the metal bushing from heating the latter to the injury of the bung-hole, and to this end we provide for circulating a cooling medium about that portion of the tube which lies within the bushing during the heat-introducing operation.

Referring to the accompanying drawings, Figure 1 shows the machine equipped with our improvement in side elevation. Fig. 2 is a view in elevation of the nozzle device with our improvement thereon Fig. 3, an enlarged broken section of one end of a heattube, and Fig. 4: a detail perspective view showing the loop of a circulating-coil for the cooling medium.

A is a heater, that shown being a cokestove of well-known variety for the purpose hereinbefore stated, mounted to render it conveniently portable on a truck B and equipped with an attachment C of any known or suitable variety for blowing air into the base of the bed of fuel in the stove. On the top of the stove is provided a laterally-extending open-ended neck D. The nozzle device with which our invention is to be used may involve any known or suitable construction. That which we have selected for illustrating our improvement consists of a metal T-coupling E, having its stem portion e in the form of an internally-screw-threaded cap adapted to be screwed upon the outer end of the neck D, and into cach end of the T-head is screwed one end of a cylindrical metal tube E', closed at its outer end, adjacent to which it contains a circumferential series of openings, shown as longitudinal slots l).

The diameter of the slotted end of the tube Ejis such as to adapt it to be inserted through a bung-hole bushing, and the diameter of the tube adjacent to the slotted end is reduced, as represented at c, relative to the interior diameter of the bushing, within which it lies-in use to allow for the increase there of the diameter to about that of the interior of said bushing by providing about the intermediate reduced section c the water-circulating pipecoil hereinafter described.

The preferred but not the only practical embodiment of our improvement involves a coil F, of narrow pipe, preferably of brass, one such coil being provided about the reduced section c of each tube E to conform its diameter at that section substantially to that of the interior of the metal bushing in the bung-hole of a barrel to be subjected to the operation of the heater, and the brass tubing is doubled upon itself and looped, as represented in Fig. 4, about a headed stud d near the outer end of. the section c, whence the doubled tubing is coiled about that section, and its two ends constitute, respectively, the inlet end and the outlet end of the coil for circulating through it the cooling medium, as water.

On the nozzle device we have shown means connecting together the inlet ends of the two coils F and means connecting together their IIO 'having studs or screws f f crossing the loops near their outer ends and forming alining bearings, and similar bearings f2 f2 Crossing the loops between their ends. The inlet ends at g g of the two coils F represented are shown to be coupled to the opposite ends of a metal connecting-pipe H, passing through the loops of the arms f and supported by the bearings f2, the pipe H' carrying a T-head 7L between the arms at which to couple with it scribed, the lcombination with a heat-tube a supply-pipe (not shown) for the cooling medium, as water, to be circulated through the coils. The outlet ends at g/ g of the two coils represented are shown to be coupled to the opposite ends of a metal connecting-pipe H', passing through the loops of the arms f and supported by the bearings f', the. pipe H carrying a T-head 7i between the arms by which to couple with it a discharge-pipe h2 for the cooling medium from the coils. On the arms f is supported, to extend across the collars e lengthwise of the tubes E, a bar i, reaching adjacent to the iinner ends of the coils F and provided on its opposite ends vwith stops k c to prevent the protrusion of the end of a tube F/ into a barrel through its bung-hole farther than will bring the coolingi coil on the tube to lie within the bushing.

Vhere a coil F is looped about a stud d as described, the head d of the stud is sufliciently wide to cover the section of coil-tubing extending about the stud' and shield the tubing in adjusting a tube E through a bunghole against encountering any obstruction that would tend to indent it, and thus impair its function.

In the use of the nozzle device in position on a heater A a barrel to be treated is supported to register its bung-hole with the outer end of a heat-tube E and is advanced relative to the nozzle device to introduce the heat-tube into it through the bung-hole.

This brings the coilsurrounded section c to register with and be surrounded by the metal bushing of the bung-hole, further protrusion of the heat-tube into the barrel being prevented by a stop f, and the circulation of cold water, which is maintained through the coil, prevents undue heating of the bushing, thereby accomplishing the purpose of our invention.

/Vhat we claim as new, and desire to secure by Letters Patent, is

lfln a nozzle device of the character de scribed, the combination with a heat-tube adapted to be inserted into a receptacle to be treated through an opening' therein, of metal tubing doubled upon itself and coiled in the doubledcondition about said tube, thereby forming thereabout a circulating-coil for a cooling medium, with one end of the coil affording the inlet and the other adjacent end thereof the outlet, for the purpose set forth.

2. In a nozzle device of the character described, the combination with a heat-tube adapted to be inserted into a receptacle to be treated through an opening therein, of a stud on said tube, and metal tubing doubled uponi itself and looped about said stud and coiled in the doubled condition about said tube, thereby forming thereabout a circulating coil for a cooling medium, with one end of the coil affording the inlet and the other end thereof the outlet, for the purpose set forth* 3. In a nozzle device of the character deadapted to be inserted into a receptacle to be treated through an opening therein, of headed stud on said tube, and metal tubing doubled upon itself and looped about said stud beneath its head and coiled in the doubled condition about said tube, thereby forming thereabout a circulating-coil for a cooling l medium with one end of the coil affording the 1- inlet and the other end thereof the outlet, for the purpose set forth.

4. A nozzle device of the character dcescribed, comprising, in combination, a head and a plurality of heat-tubes extending therefrom, each said tube having a reduced section between its ends, a frame connected with said tubes, a pipe-coil on the reduced section of each tube, forming thereon a circulating-coil for a cooling medium, and pipe `connections supported on said frame and forming, respectively, the inlet ends of said coils and the outlet ends thereof, the connection for said inlet ends having an inlet-opening common to all thereof and the connection for said outlet ends having an outlet coinmon to all thereof, for the purpose set forth.v

5. A nozzle device of the character de* scribed, comprising, in combination, a head and a plurality of heat tubes extending IOO IIO

therefrom, each heat-tube having a reduced section between its ends, a frame connected with said tubes, a doubled pipe coiled about and secured on each said section and forming thereon a circulating-coil for a cooling medium with one end forming its inlet and the other end forming its outlet, stops on said frame adjacent to the inner ends of said coils, and pipes supported on said frame, one pipe connecting the inlet ends of all saidcoils and having an inlet-opening and the other pipe connecting the outlet ends of all said coils and having an outlet-opening, for the purpose set forth.

6. A nozzle device of the character described, comprising, in combination, a head and a plurality of heat-tubes extending therefrom, closed at their outer ends and having openings adjacenttosaid ends, each tube having,` a reduced section adjacent to ends of all said coils and having an inletthe openings therein, a frame connected with opening and the other pipe Connecting the said tubes, a doubled pipe coiled about and outlet ends of all said Coils and having an secured on eaelp said section andlforrning outlet-opening,for the purpose set forth. 5 thereon a eireu ating-coil or a co0 ing Inediurn, With one end forming its inlet and the other end forming its outlet, a bar on said frame provided with stops adjacent to the In presence 0finner ends of said coils, and pipes supported J. H. LANDES, 1 o on said frame, one pipe connecting the inlet L. HEISLAR. 

